WILLARD HOBART. (1986). INSTRUMENTAL METHODS OF ANALYSIS (7TH.). CBS PUBLISHERS & DISTRIBUTORS.
Lua i Stíl Chicago (17ú heag.)WILLARD HOBART. INSTRUMENTAL METHODS OF ANALYSIS. 7TH. NEW DELHI: CBS PUBLISHERS & DISTRIBUTORS, 1986.
Lua MLA (9ú heag.)WILLARD HOBART. INSTRUMENTAL METHODS OF ANALYSIS. 7TH. CBS PUBLISHERS & DISTRIBUTORS, 1986.
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